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-rw-r--r--config/create_res.py97
1 files changed, 97 insertions, 0 deletions
diff --git a/config/create_res.py b/config/create_res.py
new file mode 100644
index 0000000000..5588fa0a49
--- /dev/null
+++ b/config/create_res.py
@@ -0,0 +1,97 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+from argparse import (
+ Action,
+ ArgumentParser,
+)
+import os
+import subprocess
+import sys
+import tempfile
+
+import buildconfig
+
+
+class CPPFlag(Action):
+ all_flags = []
+
+ def __call__(self, parser, namespace, values, option_string=None):
+ if "windres" in buildconfig.substs["RC"].lower():
+ if option_string == "-U":
+ return
+ if option_string == "-I":
+ option_string = "--include-dir"
+
+ self.all_flags.extend((option_string, values))
+
+
+def generate_res():
+ parser = ArgumentParser()
+ parser.add_argument(
+ "-D", action=CPPFlag, metavar="VAR[=VAL]", help="Define a variable"
+ )
+ parser.add_argument("-U", action=CPPFlag, metavar="VAR", help="Undefine a variable")
+ parser.add_argument(
+ "-I", action=CPPFlag, metavar="DIR", help="Search path for includes"
+ )
+ parser.add_argument("-o", dest="output", metavar="OUTPUT", help="Output file")
+ parser.add_argument("input", help="Input file")
+ args = parser.parse_args()
+
+ is_windres = "windres" in buildconfig.substs["RC"].lower()
+
+ verbose = os.environ.get("BUILD_VERBOSE_LOG")
+
+ # llvm-rc doesn't preprocess on its own, so preprocess manually
+ # Theoretically, not windres could be rc.exe, but configure won't use it
+ # unless you really ask for it, and it will still work with preprocessed
+ # output.
+ try:
+ if not is_windres:
+ fd, path = tempfile.mkstemp(suffix=".rc")
+ command = buildconfig.substs["CXXCPP"] + CPPFlag.all_flags
+ command.extend(("-DRC_INVOKED", args.input))
+ if verbose:
+ print("Executing:", " ".join(command))
+ with os.fdopen(fd, "wb") as fh:
+ retcode = subprocess.run(command, stdout=fh).returncode
+ if retcode:
+ # Rely on the subprocess printing out any relevant error
+ return retcode
+ else:
+ path = args.input
+
+ command = [buildconfig.substs["RC"]]
+ if is_windres:
+ command.extend(("-O", "coff"))
+
+ # Even though llvm-rc doesn't preprocess, we still need to pass at least
+ # the -I flags.
+ command.extend(CPPFlag.all_flags)
+
+ if args.output:
+ if is_windres:
+ command.extend(("-o", args.output))
+ else:
+ # Use win1252 code page for the input.
+ command.extend(("-c", "1252", "-Fo" + args.output))
+
+ command.append(path)
+
+ if verbose:
+ print("Executing:", " ".join(command))
+ retcode = subprocess.run(command).returncode
+ if retcode:
+ # Rely on the subprocess printing out any relevant error
+ return retcode
+ finally:
+ if path != args.input:
+ os.remove(path)
+
+ return 0
+
+
+if __name__ == "__main__":
+ sys.exit(generate_res())